William l



` `aller explained. f .Y 4Figure 1 is a side elevation, shown partly in section,

on the linea; :cof lig. 2,.and

` 2, and 3,-so thatbyloosening the screw b .can be adjusted to any required height where t-may `WiLLIAn L. WASHBURN, or NEW YORK, N. Y.

Leners Patent No. 105,392, @and .my 12, 1ero.

1 IMRov'EMEN-.r momma@ APP i TUB.

" The Schedule referred to in these Lettera Patent and part ofthe eamo.

' Be it` known that I,"WILMAM L. WAsHBUaN, of New York, inthe `countyfoi'A New York and State'ot Newl York, have invented certain Improvements inl Grnd'stones` for household nse,of which the following xsa specliicatoxnreference being had to the accoinpanying drawing. t

My invention relates` to a grinding 'apparatus,in tended to be used 1n connection with sewing-maaliines;` and` Y The invention consists in making the rest adjustable, and in an attachment for. applying moisture to the stone and lkeeping' the lat-ter clean,fall as herein- Figure 2'is'a ltop plan view of the apparatus, with "my improvements applied.

, My invention has for its olriec't to irendermore perfeet the apparatus' heretofore patented to Ohattaway 'i & Dickenson, and to that end I rst make the rest' 'which Isupports the article, while being ground, in two ,luu'ts, D and 111,' these parts being connected by a hinge-joint with asiel-ew, b, as represented in 'l/gs. l,-

vhackV oi'y thclblade being laid fiat 'on the top of the rest.` 'lhe lower part E of thisrest has a V-shapcd4 groove formed in itsunder face 5to vfit upon a correspending prtd'ectio'n upon nthe face of the table, to prevent itt it is moved to or `from thc stone; vand it has a longitlie part D'V om .boing turned sidewse, and to guide it as v vhally, as desired.

Where an'apparatus of this kind is used on a sewing-machine table, o'i` in any similar position, it will not'do, for obvious reasons, to apply water to it in4 such a manner as to drip from or onto the stone, and if the stone be used dry'it will soon become glazed on its surface, and` will cease to grind or eut the metal to advantage. To avoid thesje diiculties, and keep the surface of the stone clean and moist, I provide a'metal arm, a,-bent in the form of a hook or loop, as shown `in igf2, and secure it to the bed or frame A by` means oi' a screw, e, or in any suit-able manner. In the loop of this arm a. I place a. piece of sponge', C, in such 'a position as to be in contact with the face ofthe stone B, 'as represented in figs. 1 and 2.- ,By wetting this .fsponge I keep the face of -the stone moist and clean, and prcventit from becoming glazed. Care should be taken' noty to saturate the sponge to'too great an extent, or the water will drip from it and soil the table or articles thereon. g

Having-,thus described my improvements, What I claim as of my invention is-f 1'. The adjustable rest, consisting of vthe part E,A'

provided lwith the V-shapcd groove and slot; and hav ing the part D hinged' thereto by the setlserew b, all as herein described.

2.',The spring-arma, when constructed and arranged substantially as described, for holding the sponge C,

as set forth. Y v y l WILLIAM L. WAS-HBURN.

, Vlit-ness'es:

' Jona ',l. Porn,

G. M. THOMPSON.4 

